function assertApproxEqRelDecimal(uint256 left, uint256 right, uint256 maxPercentDelta, uint256 decimals) internal;function assertApproxEqRelDecimal(uint256 left, uint256 right, uint256 maxPercentDelta, uint256 decimals, string memory err) internal;function assertApproxEqRelDecimal(int256 left, int256 right, uint256 maxPercentDelta, uint256 decimals) internal;function assertApproxEqRelDecimal(int256 left, int256 right, uint256 maxPercentDelta, uint256 decimals, string memory err) internal;Asserts left is approximately equal to right with delta in percentage, where 1e18 is 100%.
left and right are formatted with decimals in the revert string.
Optionally includes an error message in the revert string.